Well... that may be weird, but is all working for me.
I went to one of the articles that was no edited, i added some variables lookup synonyms, they where grabbed, i saved changes, evertyhing worked.
It must been working for you too because i seen you have 3 or 4 articles taht you edited and added variables with synonyms nd where all saved.
Sometime those error on page warning from IE can be false alarms, you should lower the reporting level on javascrupt error (not have that window pop all the time)
As about zip export, it worked for me. I downloaded some articles both as text and hrml files in a zip. If you said it used to work for you too, it may been some temporary server issue but as of now, i could not make it show me that error. I can try again if you tell me step by step how you get that error.
Thanks omar for helping out. I will try it out again. I guess it's the browser I'm using.
I'm using firefox with IE tab. I will try it with IE first.
Thanks again.
lamy